
Duplicating a CD or DVD
You can use Disk Utility to quickly make copies of a CD or DVD and the information it contains.
To do so, first you create a disk image of the CD or DVD. Then you use the disk image to burn copies of the disc.
- Insert the CD or DVD disc in your computer's optical drive and select it in the list of disks and volumes.
- Choose File > New > "Disk Image from (name of disc)."
- Type a name for the disk image and choose an image format.
- To require a password to access the contents of the disk image, choose "AES-128 (recommended)" from the Encryption pop-up menu.
- Click Save.
- When creating the disk image finishes, eject the original CD or DVD.
- Select the disk image in the list and choose Images > Burn.
- When the Burn Disc dialog appears, insert a blank CD or DVD.
To select additional options, such as making the disc appendable, click the triangle in the top-right corner.
- Click Burn.
You can continue using the disk image to create as many duplicate discs as you need.